179 citations · 993 across the 39 of their papers we have counts for
9 papers · 1 filter
Air entrainment and gas transfer processes in wave breaking events
Simone Di Giorgio, Sergio Pirozzoli, Alessandro Iafrati
We investigate gas transfer processes occurring at the air-water interface of progressive water waves using high-fidelity numerical simulations. Waves with varying initial steepnes…
CaLES: A GPU-accelerated solver for large-eddy simulation of wall-bounded flows
Maochao Xiao, Alessandro Ceci, Pedro Costa +2
We introduce CaLES, a GPU-accelerated finite-difference solver designed for large-eddy simulations (LES) of incompressible wall-bounded flows in massively parallel environments. Bu…
Reynolds number effects on turbulent flow in curved channels
Giulio Soldati, Paolo Orlandi, Sergio Pirozzoli
In this work, we study the flow in curved channels, an archetypal configuration that allows insights into problems featuring turbulence bounded by curved walls. Besides its relevan…
Turbulent skin-friction drag reduction via spanwise forcing at high Reynolds number
Davide Gatti, Maurizio Quadrio, Alessandro Chiarini +2
We address the Reynolds-number dependence of the turbulent skin-friction drag reduction induced by streamwise-travelling waves of spanwise wall oscillations. The study relies on di…
Direct numerical simulation of drag reduction in rotating pipe flow up to
Maochao Xiao, Alessandro Ceci, Paolo Orlandi +1
Direct numerical simulations (DNS) of rotating pipe flows up to are carried out to investigate drag reduction effects associated with axial rotation, extending…
On the streamwise velocity variance in the near-wall region of turbulent flows
Sergio Pirozzoli
We study the behaviour of the streamwise velocity variance in turbulent wall-bounded flows using a DNS database of pipe flow up to . The analysis of the spanwis…
Intrinsic compressibility effects in near-wall turbulence
Asif Manzoor Hasan, Pedro Costa, Johan Larsson +2
The impact of intrinsic compressibility effects -- changes in fluid volume due to pressure variations -- on high-speed wall-bounded turbulence has often been overlooked or incorrec…
Friction and heat transfer in forced air convection with variable physical properties
Davide Modesti, Sergio Pirozzoli
We establish a theoretical framework for predicting friction and heat transfer coefficients in variable-properties forced air convection. Drawing from concepts in high-speed wall t…
Mean temperature profiles in turbulent internal flows
Sergio Pirozzoli, Davide Modesti
We derive explicit formulas for the mean profiles of temperature (modeled as a passive scalar) in forced turbulent convection, as a function of the Reynolds and Prandtl numbers. Th…